Welcome to the Community, I'm really sorry to learn about the problems with your phone line recently.
I've been able to locate your account and run some tests on the line from our end, we're seeing no problems being detected though. Have you been able to test your handset at all? By trying an alternate handset or your handset on an alternate line?
Thanks for taking the time to get back to me, I'm sorry again for the inconvenience you're experiencing.
I'd like to arrange for an engineer to come and take a closer look if you're available, I've sent you information regarding this in a private message, which you can view by clicking the envelope on the top right of this page.
Look forward to hearing from you and arranging for action to get this issue resolved.